Answer:
The concept that those in favor of the change are struggling against is core rigidity.
Explanation:
Core rigidity implies sticking to status quo and being very comfortable in one's comfort zone,hence the business is not happy undertaking risks by investing in new opportunities that it could leverage on and profit from.
Those in favor of online presence are change champions with an optimistic view on new lines of business especially when the company has the competences and capabilities to thrive in the new terrain.